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|Title:||Disordered polymer antireflective coating for improved perovskite photovoltaics||Authors:||Thangavel, Nivethaa R.
Adhyaksa, Gede W. P.
Dewi, Herlina A.
Birowosuto, Muhammad D.
|Keywords:||Engineering||Issue Date:||2020||Source:||Thangavel, N. R., Adhyaksa, G. W. P., Dewi, H. A., Tjahjana, L., Bruno, A., Birowosuto, M. D., Wang, H., Mathews, N. & Mhaisalkar, S. (2020). Disordered polymer antireflective coating for improved perovskite photovoltaics. ACS Photonics, 7(8), 1971-1977. https://dx.doi.org/10.1021/acsphotonics.0c00805||Journal:||ACS Photonics||Abstract:||Light management through low index medium, such as antireflective coating (ARC) provides practical solution to improve the efficiency of photovoltaics. However, a brute-force development of photonic structure on ARC is not necessarily useful, because of random scattering associated with impediment of light transmission. Here, we leverage the concept of disorder, rather than random, structured on ARC for improving efficiency without modifying original architecture of thin-film photovoltaics. We demonstrate a disordered polymer that leads to a total reflectance of 5% while demonstrating a high transmission of 94% across 300 to 820 nm wavelength. Next, we find that the arrangement of disordered points and line arrays constructing the polymer seems to be the key to control bandwidth performance of the ARC. Finally, we apply this into Cs0.05(MA0.17FA0.83)0.95Pb(I0.83Br0.17)3 perovskite, and through experiments with wave-optics and full-device simulation, show a 1.6-fold absorption gain leading to 19.59% power-conversion-efficiency by the disordered ARC.||URI:||https://hdl.handle.net/10356/147018||ISSN:||2330-4022||DOI:||10.1021/acsphotonics.0c00805||Rights:||This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Photonics, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acsphotonics.0c00805||Fulltext Permission:||embargo_20210819||Fulltext Availability:||With Fulltext|
|Appears in Collections:||ERI@N Journal Articles|
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